src/Screen/Fonts.cpp

   1 /*
   2 Copyright_License {
   3
   4   XCSoar Glide Computer - http://www.xcsoar.org/
   5   Copyright (C) 2000-2012 The XCSoar Project
   6   A detailed list of copyright holders can be found in the file "AUTHORS".
   7
   8   This program is free software; you can redistribute it and/or
   9   modify it under the terms of the GNU General Public License
  10   as published by the Free Software Foundation; either version 2
  11   of the License, or (at your option) any later version.
  12
  13   This program is distributed in the hope that it will be useful,
  14   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16   GNU General Public License for more details.
  17
  18   You should have received a copy of the GNU General Public License
  19   along with this program; if not, write to the Free Software
  20   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21 }
  22 */
  23
  24 #include "Screen/Fonts.hpp"
  25 #include "Screen/Font.hpp"
  26 #include "Screen/Layout.hpp"
  27
  28 /// values inside infoboxes  like numbers, etc.
  29 Font Fonts::infobox;
  30 Font Fonts::infobox_small;
  31 #ifndef GNAV
  32 Font Fonts::infobox_units;
  33 #endif
  34 /// Titles of infoboxes like Next, WP L/D etc.
  35 Font Fonts::title;
  36 /// vario display, runway informations
  37 Font Fonts::cdi;
  38 Font Fonts::monospace;
  39 /// text names on the map
  40 Font Fonts::map;
  41 /// menu buttons, waypoint selection, messages, etc.
  42 Font Fonts::map_bold;
  43 /// Flarm Traffic draweing and stats, map labels in italic
  44 Font Fonts::map_label;
  45 /// font labels for important labels (e.g. big/medium cities)
  46 Font Fonts::map_label_important;
  47
  48 // these are the non-custom parameters
  49 LOGFONT log_infobox;
  50 #ifndef GNAV
  51 LOGFONT log_infobox_units;
  52 #endif
  53 LOGFONT log_title;
  54 LOGFONT log_map;
  55 LOGFONT log_infobox_small;
  56 LOGFONT log_map_bold;
  57 LOGFONT log_cdi;
  58 LOGFONT log_map_label;
  59 LOGFONT log_map_label_important;
  60 static LOGFONT log_monospace;
  61
  62 static const TCHAR *
  63 GetStandardMonospaceFontFace()
  64 {
  65   if (IsAndroid())
  66     return _T("Droid Sans Mono");
  67
  68   return _T("Courier");
  69 }
  70
  71 static void
  72 InitialiseLogfont(LOGFONT* font, const TCHAR* facename, UPixelScalar height,
  73                   bool bold = false, bool italic = false,
  74                   bool variable_pitch = true)
  75 {
  76   memset((char *)font, 0, sizeof(LOGFONT));
  77
  78   _tcscpy(font->lfFaceName, facename);
  79
  80   font->lfPitchAndFamily = (variable_pitch ? VARIABLE_PITCH : FIXED_PITCH)
  81                           | FF_DONTCARE;
  82
  83   font->lfHeight = (long)height;
  84   font->lfWeight = (long)(bold ? FW_BOLD : FW_MEDIUM);
  85   font->lfItalic = italic;
  86
  87 #ifdef WIN32
  88   if (IsAltair())
  89     font->lfQuality = NONANTIALIASED_QUALITY;
  90   else
  91     font->lfQuality = ANTIALIASED_QUALITY;
  92 #endif
  93 }
  94
  95 static void
  96 LoadAltairLogFonts()
  97 {
  98   InitialiseLogfont(&log_infobox, _T("RasterGothicTwentyFourCond"), 24, true);
  99   InitialiseLogfont(&log_title, _T("RasterGothicNineCond"), 10);
 100   InitialiseLogfont(&log_cdi, _T("RasterGothicEighteenCond"), 19, true);
 101   InitialiseLogfont(&log_map_label, _T("RasterGothicTwelveCond"), 13);
 102   InitialiseLogfont(&log_map_label_important,
 103                     _T("RasterGothicTwelveCond"), 13, true);
 104   InitialiseLogfont(&log_map, _T("RasterGothicFourteenCond"), 15);
 105   InitialiseLogfont(&log_map_bold, _T("RasterGothicFourteenCond"), 15, true);
 106   InitialiseLogfont(&log_infobox_small, _T("RasterGothicEighteenCond"), 19, true);
 107   InitialiseLogfont(&log_monospace, GetStandardMonospaceFontFace(),
 108                     10, false, false, false);
 109 }
 110
 111 static void
 112 SizeLogFont(LOGFONT &logfont, UPixelScalar width, const TCHAR* str)
 113 {
 114   // JMW algorithm to auto-size info window font.
 115   // this is still required in case title font property doesn't exist.
 116   PixelSize tsize;
 117   do {
 118     --logfont.lfHeight;
 119
 120     Font font;
 121     if (!font.Set(logfont))
 122       break;
 123
 124     tsize = font.TextSize(str);
 125   } while ((unsigned)tsize.cx > width);
 126
 127   ++logfont.lfHeight;
 128 }
 129
 130 static void
 131 InitialiseLogFonts()
 132 {
 133   if (IsAltair()) {
 134     LoadAltairLogFonts();
 135     return;
 136   }
 137
 138 #ifndef USE_GDI
 139   UPixelScalar FontHeight = Layout::SmallScale(IsAndroid() ? 30 : 24);
 140 #else
 141   UPixelScalar FontHeight = Layout::SmallScale(35);
 142 #endif
 143
 144   // oversize first so can then scale down
 145   InitialiseLogfont(&log_infobox, Fonts::GetStandardFontFace(),
 146                     (int)(FontHeight * 1.4), true, false, true);
 147
 148 #ifdef WIN32
 149   log_infobox.lfCharSet = ANSI_CHARSET;
 150 #endif
 151
 152   InitialiseLogfont(&log_title, Fonts::GetStandardFontFace(),
 153                     FontHeight / 3, true);
 154
 155   // new font for CDI Scale
 156   InitialiseLogfont(&log_cdi, Fonts::GetStandardFontFace(),
 157                     UPixelScalar(FontHeight * 0.6), false, false, false);
 158
 159   // new font for map labels
 160   InitialiseLogfont(&log_map_label, Fonts::GetStandardFontFace(),
 161                     UPixelScalar(FontHeight * 0.39), false, true);
 162
 163   // new font for map labels big/medium cities
 164   InitialiseLogfont(&log_map_label_important, Fonts::GetStandardFontFace(),
 165                     UPixelScalar(FontHeight * 0.39), true, true);
 166
 167   // new font for map labels
 168   InitialiseLogfont(&log_map, Fonts::GetStandardFontFace(),
 169                     UPixelScalar(FontHeight * 0.507));
 170
 171   // Font for map bold text
 172   InitialiseLogfont(&log_map_bold, Fonts::GetStandardFontFace(),
 173                     UPixelScalar(FontHeight * 0.507), true);
 174
 175   InitialiseLogfont(&log_infobox_small, Fonts::GetStandardFontFace(),
 176                     Layout::Scale(20));
 177
 178   InitialiseLogfont(&log_infobox_small, Fonts::GetStandardFontFace(),
 179                     (int)(FontHeight * 0.56), true);
 180
 181   InitialiseLogfont(&log_monospace, GetStandardMonospaceFontFace(),
 182                     UPixelScalar(FontHeight * 0.39), false, false, false);
 183 }
 184
 185 bool
 186 Fonts::Initialize()
 187 {
 188   InitialiseLogFonts();
 189
 190   title.Set(log_title);
 191   cdi.Set(log_cdi);
 192   map_label.Set(log_map_label);
 193   map_label_important.Set(log_map_label_important);
 194   map.Set(log_map);
 195   map_bold.Set(log_map_bold);
 196   monospace.Set(log_monospace);
 197
 198   return title.IsDefined() && cdi.IsDefined() &&
 199     map_label.IsDefined() && map_label_important.IsDefined() &&
 200     map.IsDefined() && map_bold.IsDefined() &&
 201     monospace.IsDefined();
 202 }
 203
 204 void
 205 Fonts::SizeInfoboxFont(UPixelScalar control_width)
 206 {
 207   LOGFONT lf = log_infobox;
 208
 209   if (!IsAltair())
 210     SizeLogFont(lf, control_width, _T("1234m"));
 211   infobox.Set(lf);
 212
 213 #ifndef GNAV
 214   unsigned height = lf.lfHeight;
 215   lf = log_infobox_units;
 216   lf.lfHeight = (height * 2) / 5;
 217   infobox_units.Set(lf);
 218 #endif
 219
 220   lf = log_infobox_small;
 221   if (!IsAltair())
 222     SizeLogFont(lf, control_width, _T("12345m"));
 223   infobox_small.Set(lf);
 224 }
 225
 226 void
 227 Fonts::Deinitialize()
 228 {
 229   infobox.Reset();
 230   infobox_small.Reset();
 231 #ifndef GNAV
 232   infobox_units.Reset();
 233 #endif
 234   title.Reset();
 235   map.Reset();
 236   map_bold.Reset();
 237   cdi.Reset();
 238   map_label.Reset();
 239   map_label_important.Reset();
 240   monospace.Reset();
 241 }
 242
 243 const TCHAR*
 244 Fonts::GetStandardFontFace()
 245 {
 246   if (IsAltair())
 247     return _T("RasterGothicFourteenCond");
 248
 249   if (IsAndroid())
 250     return _T("Droid Sans");
 251
 252   return _T("Tahoma");
 253 }